JLH Hphone amp transistor replacements

[colin.hepburn2]

Hi All
Looking for low nose high gain transistor replacements for THE JLH HEADPHONE AMP Found on geoff moss.s site Plus PCB files for circuit 1
2N4922
BC182
BC212

http://www.tcaas.btinternet.co.uk/jlhphones.htm

Thanks
Colin

 

[Geoff]

Hi Colin

Sorry, can't help you with the pcb layout, but alternative transistors could be:

For the BC182/BC 212 - BC550/BC560 or 2SA970/2SC2240 or 2SA872/2SC1775

For the 2N4922 - BD139 or 2SC3421

Note, these alternatives are not necessarily pin compatible with the originals.

Geoff